1 # -*- coding: utf8 -*-
   2 #  Advanced editing plugin
   3 #
   4 #  Copyright (C) 2007 Shaddy Zeineddine <shaddyz@users.sourceforge.net>
   5 #  Copyright (C) 2005 Marcus Lunzenauer <mlunzena@uos.de>
   6 #
   7 #  This program is free software; you can redistribute it and/or modify
   8 #  it under the terms of the GNU General Public License as published by
   9 #  the Free Software Foundation; either version 2 of the License, or
  10 #  (at your option) any later version.
  11 #
  12 #  This program is distributed in the hope that it will be useful,
  13 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 #  GNU General Public License for more details.
  16 #
  17 #  You should have received a copy of the GNU General Public License
  18 #  along with this program; if not, write to the Free Software
  19 #  Foundation, Inc., 59 Temple Place, Suite 330,
  20 #  Boston, MA 02111-1307, USA.
  21 
  22 import gedit
  23 import gtk
  24 
  25 adv_edit_str = """
  26 <ui>
  27   <menubar name="MenuBar">
  28     <menu name="EditMenu" action="Edit">
  29       <placeholder name="EditOps_3">
  30         <separator name="AdvancedEditingSep1"/>
  31         <menuitem name="DeleteLine"          action="DeleteLine"/>
  32         <menuitem name="DeleteLineBackwards" action="DeleteLineBackwards"/>
  33         <menuitem name="DuplicateLine"       action="DuplicateLine"/>
  34         <separator name="AdvancedEditingSep2"/>
  35         <menuitem name="RemoveWhitespace"    action="RemoveWhitespace"/>
  36         <menuitem name="ReduceWhitespace"    action="ReduceWhitespace"/>
  37       </placeholder>
  38     </menu>
  39   </menubar>
  40 </ui>
  41 """
  42 
  43 class AdvancedEditingPlugin(gedit.Plugin):
  44   def __init__(self):
  45     gedit.Plugin.__init__(self)
  46 
  47   def delete_line(self, action, window):
  48     view = window.get_active_view()
  49     view.do_delete_from_cursor(view, gtk.DELETE_PARAGRAPH_ENDS, 1)
  50 
  51   def delete_line_bw(self, action, window):
  52     view = window.get_active_view()
  53     doc  = window.get_active_document()
  54     doc.begin_user_action()
  55     view.do_move_cursor(view, gtk.MOVEMENT_PARAGRAPH_ENDS, -1, 0)
  56     itstart = doc.get_iter_at_mark(doc.get_insert())
  57     itend = doc.get_iter_at_mark(doc.get_insert())
  58     itend.forward_line();
  59     line = doc.get_slice(itstart, itend, True)
  60     doc.delete(itstart, itend);
  61     doc.end_user_action()
  62 
  63   def duplicate_line(self, action, window):
  64     view = window.get_active_view()
  65     doc  = window.get_active_document()
  66     doc.begin_user_action()
  67     view.do_move_cursor(view, gtk.MOVEMENT_PARAGRAPH_ENDS, -1, 0)
  68     itstart = doc.get_iter_at_mark(doc.get_insert())
  69     itend = doc.get_iter_at_mark(doc.get_insert())
  70     itend.forward_line();
  71     line = doc.get_slice(itstart, itend, True)
  72     doc.insert_at_cursor(line)
  73     view.do_move_cursor(view, gtk.MOVEMENT_PARAGRAPHS, -1, 0)
  74     doc.end_user_action()
  75 
  76   def remove_whitespace(self, action, window):
  77     view = window.get_active_view()
  78     view.do_delete_from_cursor(view, gtk.DELETE_WHITESPACE, 1)
  79 
  80   def reduce_whitespace(self, action, window):
  81     view = window.get_active_view()
  82     view.do_delete_from_cursor(view, gtk.DELETE_WHITESPACE, 1)
  83     view.do_insert_at_cursor(view, ' ')
  84 
  85   def activate(self, window):
  86     actions = [
  87       ('DeleteLine',          None, 'Delete To End Of Line', '<Shift><Control>j', "Delete To End Of Line", self.delete_line),
  88       ('DeleteLineBackwards', None, 'Kill Line',             '<Control>j',        "Kill Line",             self.delete_line_bw),
  89       ('DuplicateLine',       None, 'Duplicate Line',        '<Control>d',        "Duplicate Line",        self.duplicate_line),
  90       ('RemoveWhitespace',    None, 'Remove Whitespace',     '<Shift><Alt>j',     "Remove Whitespace",     self.remove_whitespace),
  91       ('ReduceWhitespace',    None, 'Reduce Whitespace',     '<Alt>j',            "Reduce Whitespace",     self.reduce_whitespace)
  92     ]
  93 
  94     # store per window data in the window object
  95     windowdata = dict()
  96     window.set_data("AdvancedEditingPluginWindowDataKey", windowdata)
  97 
  98     windowdata["action_group"] = gtk.ActionGroup("GeditAdvancedEditingPluginActions")
  99     windowdata["action_group"].add_actions(actions, window)
 100 
 101     manager = window.get_ui_manager()
 102     manager.insert_action_group(windowdata["action_group"], -1)
 103 
 104     windowdata["ui_id"] = manager.add_ui_from_string(adv_edit_str)
 105 
 106     window.set_data("AdvancedEditingPluginInfo", windowdata)
 107 
 108   def deactivate(self, window):
 109     windowdata = window.get_data("AdvancedEditingPluginWindowDataKey")
 110     manager = window.get_ui_manager()
 111     manager.remove_ui(windowdata["ui_id"])
 112     manager.remove_action_group(windowdata["action_group"])
 113 
 114   def update_ui(self, window):
 115     view = window.get_active_view()
 116     windowdata = window.get_data("AdvancedEditingPluginWindowDataKey")
 117     windowdata["action_group"].set_sensitive(bool(view and view.get_editable()))